Controlling the synthesis and assembly of silver nanostructures for plasmonic applications.
Controlling the synthesis and assembly of silver nanostructures for plasmonic applications.
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DOI：
10.1021/cr100275d
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发表时间：
2011-06-08
期刊：
影响因子：
62.1
通讯作者：
Xia, Younan
中科院分区：
文献类型：
--
作者：
Rycenga, Matthew;Cobley, Claire M.;Zeng, Jie;Li, Weiyang;Moran, Christine H.;Zhang, Qiang;Qin, Dong;Xia, Younan
钴金属，例如Au、Ag和Cu，在整个历史上一直是重要的材料。(1)虽然在古代文化中，它们主要因其反射光的能力而受到钦佩，但随着我们对原子世界的理解和控制的增加，它们的应用变得更加复杂。今天，这些金属被广泛用于电子和催化以及作为结构材料，但是当它们被塑造成纳米尺寸的结构时，它们也成为涉及光的完全不同的应用的推动者。这些新的应用远远超出了仅仅反射光，并重新激发了我们在被称为等离子体激元的领域中操纵金属与光之间相互作用的兴趣。（2 - 6）在等离子体中，金属纳米结构可以用作天线以将光转换成局部电场（E场），或者用作波导以纳米精度将光路由到期望的位置。这些应用是通过入射光和纳米结构中的自由电子之间的强烈相互作用而实现的。通过严格控制纳米结构的尺寸和形状，可以以前所未有的精度有效地操纵和控制光。（3，7）虽然许多新技术都可以从等离子体实现，其中值得注意的例子包括超级透镜，（8）隐形斗篷，（9）和量子计算，（10，11）传统技术，如微处理器和光伏器件也可以通过等离子体纳米结构的集成变得更快，更有效。在金属中，Ag可能在等离子体的发展中发挥了最重要的作用，其独特的性质使其非常适合大多数下一代等离子体技术。（16 - 18）
Coinage metals, such as Au, Ag, and Cu, have been important materials throughout history.(1) Although in ancient cultures they were admired primarily for their ability to reflect light, their applications have become far more sophisticated with our increased understanding and control of the atomic world. Today, these metals are widely used in electronics and catalysis and as structural materials, but when they are fashioned into structures with nanometer-sized dimensions, they also become enablers for a completely different set of applications that involve light. These new applications go far beyond merely reflecting light and have renewed our interest in maneuvering the interactions between metals and light in a field known as plasmonics.(2-6)In plasmonics, metal nanostructures can serve as antennas to convert light into localized electric fields (E-fields) or as waveguides to route light to desired locations with nanometer precision. These applications are made possible through a strong interaction between incident light and free electrons in the nanostructures. With a tight control over the nanostructures in terms of size and shape, light can be effectively manipulated and controlled with unprecedented accuracy.(3, 7) Although many new technologies stand to be realized from plasmonics, with notable examples including superlenses,(8) invisibility cloaks,(9) and quantum computing,(10, 11) conventional technologies like microprocessors and photovoltaic devices could also be made significantly faster and more efficient with the integration of plasmonic nanostructures.(12-15) Of the metals, Ag has probably played the most important role in the development of plasmonics, and its unique properties make it well-suited for most of the next-generation plasmonic technologies.(16-18)
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